Symptoms
This issue occurs when multiple virtual private network (VPN) software applications are installed on a computer that works as a VPN client.
Resolution
To fix this issue, install May 2016 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.